Fair Value Measurements - Significant inputs as of the valuation dates (Details)		12 Months Ended
	Jan. 07, 2025 USD ($) $ / shares	Dec. 31, 2025 USD ($) $ / shares
Fair Value Measurements
Grant date fair values for warrants	$ 94,000,000
Loss on issuance of warrants	75,600,000	$ (75,644,000)
Series A Warrants
Fair Value Measurements
Grant date fair values for warrants	20,700,000
Series B Warrants
Fair Value Measurements
Grant date fair values for warrants	$ 73,300,000
Level 3 \| Series A Warrants
Fair Value Measurements
Warrants, measurement input \| $ / shares	45	8.06
Level 3 \| Series B Warrants
Fair Value Measurements
Warrants, measurement input \| $ / shares	45	8.06
Level 3 \| Stock Price \| Series A Warrants
Fair Value Measurements
Warrants, measurement input \| $ / shares	15.91	1.1
Level 3 \| Stock Price \| Series B Warrants
Fair Value Measurements
Warrants, measurement input \| $ / shares	15.91	1.1
Level 3 \| Expected volatility \| Series A Warrants
Fair Value Measurements
Warrants, measurement input	0.99	1.60
Level 3 \| Expected volatility \| Series B Warrants
Fair Value Measurements
Warrants, measurement input	1.30	2
Level 3 \| Risk-free interest rate \| Series A Warrants
Fair Value Measurements
Warrants, measurement input	0.0436	0.036
Level 3 \| Risk-free interest rate \| Series B Warrants
Fair Value Measurements
Warrants, measurement input	0.0422	0.035
Level 3 \| Expected life (in years) \| Series A Warrants
Fair Value Measurements
Warrants, measurement input	5	4.02
Level 3 \| Expected life (in years) \| Series B Warrants
Fair Value Measurements
Warrants, measurement input	2.5	1.52